There was a conversation on this recently on HN. IIRC jashkenas said he liked the idea but it would be better to encourage library author's to write a functional style enabling chaining rather than adding a new feature to the language.
Btw, I found that missing too in Python and created Moka (http://www.phzbox.com/moka/ It's still in heavy construction)
Actually, that was in response to a previous request for a dedicate chaining syntax. This syntax is actually more useful for dealing with when chaining is already implemented.
Btw, I found that missing too in Python and created Moka (http://www.phzbox.com/moka/ It's still in heavy construction)